1. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

2. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

3. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

4. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

5. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

6. Who invented Nylon ?

Answer:

Wallace Carothers

7. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683